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W3CSO

Expired1x3District 3

No competing applications on record.

License HolderWILDERMUTH, WILLIAM F

License ClassAdvanced

Min. Class RequiredGeneral

LocationGaithersburg, MD

Grant DateOct 1, 2014

Expiration DateOct 1, 2024

Available for ApplicationsOct 2, 2026

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W3CSO

Expired1x3District 3

No competing applications on record.

License HolderWILDERMUTH, WILLIAM F

License ClassAdvanced

Min. Class RequiredGeneral

LocationGaithersburg, MD

Grant DateOct 1, 2014

Expiration DateOct 1, 2024

Available for ApplicationsOct 2, 2026

W3CSO is a 1x3 format amateur radio callsign. It is currently registered to WILDERMUTH, WILLIAM F in Gaithersburg, MD. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

.-- ...-- -.-. ... ---

CW Weight: 36 units(Moderate)

Voice Phonetics

Whiskey Three Charlie Sierra Oscar

Readability: 7.5/10(High readability)

Available Oct 2, 2026 (29 days remaining)

Requires General license or higher to apply for this callsign format (1x3).

License History

License RenewedOct 1, 2014
Administrative Update AppliedFeb 16, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

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FCC data as of Sep 3, 2026

Is W3CSO Available? FCC Vanity Status & Watchlist